Linux Foundation Xen up to 4.3 on x86 hvm.c HVMOP_set_mem_type access control

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2.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Foundation Xen up to 4.3 on x86. This affects the function HVMOP_set_mem_type of the file hvm.c. This manipulation causes access control. This vulnerability is tracked as CVE-2014-3124. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in Linux Foundation Xen up to 4.3 on x86 (Virtualization Software). Affected by this vulnerability is the function HVMOP_set_mem_type of the file hvm.c. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect availability.

The weakness was disclosed 04/29/2014 by Jan Beulich with SuSE as XSA-92 as confirmed advisory (Website). It is possible to read the advisory at xenbits.xenproject.org. This vulnerability is known as CVE-2014-3124 since 04/29/2014. The exploitation appears to be difficult. Attacking locally is a requirement. A single authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 78117 (openSUSE Security Update : xen (openSUSE-SU-2014:1281-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123186 (Fedora Security Update for xen (FEDORA-2015-0331)).

Applying the patch xsa92.patch is able to eliminate this problem. The bugfix is ready for download at xenbits.xenproject.org. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Running only PV guests will avoid this vulnerability. In a radically disaggregated system, restricting HVM service domains to software images approved by the host administrator will avoid the vulnerability.

The vulnerability is also documented in the databases at Tenable (78117), SecurityFocus (BID 67113†) and SecurityTracker (ID 1030160†). The entries VDB-12695, VDB-13151, VDB-13429 and VDB-13468 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Not Affected

  • Linux Foundation Xen up to 4.0

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.5
VulDB Meta Temp Score: 2.4

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 78117
Nessus Name: openSUSE Security Update : xen (openSUSE-SU-2014:1281-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801150
OpenVAS Name: Fedora Update for xen FEDORA-2014-15503
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: xsa92.patch

Timelineinfo

04/29/2014 🔍
04/29/2014 +0 days 🔍
04/29/2014 +0 days 🔍
04/29/2014 +0 days 🔍
04/29/2014 +0 days 🔍
04/30/2014 +1 days 🔍
05/07/2014 +7 days 🔍
10/10/2014 +156 days 🔍
06/19/2021 +2444 days 🔍

Sourcesinfo

Vendor: linuxfoundation.org

Advisory: XSA-92
Researcher: Jan Beulich
Organization: SuSE
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3124 (🔍)
GCVE (CVE): GCVE-0-2014-3124
GCVE (VulDB): GCVE-100-13087

OVAL: 🔍

SecurityFocus: 67113 - Xen 'HVMOP_set_mem_type' Operation Remote Denial of Service Vulnerability
SecurityTracker: 1030160

See also: 🔍

Entryinfo

Created: 04/30/2014 19:40
Updated: 06/19/2021 07:11
Changes: 04/30/2014 19:40 (60), 06/26/2018 08:41 (22), 06/19/2021 07:11 (3)
Complete: 🔍
Cache ID: 216::103

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